Alert archive / Minnesota / Tornado Warnings in 2013

Tornado Warning 11, NWS Grand Forks, ND

August 24, 2013Lake of the Woods County, Roseau County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Aug 24, 2013, 7:02 PM CDT for Lake of the Woods County, Roseau County, Minnesota. It was in force for 43 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 24, 2013, 7:02 PM CDT (00:02 UTC)
Expired
Aug 24, 2013, 7:45 PM CDT
In force
43 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Lake of the Woods County, MN, Roseau County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 240 km from the middle of the area, began a volume at 00:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Aug 24, 7:15 PM CDTHAIL 17 S Warroad, MN
Aug 24, 7:40 PM CDTHAIL 24 S Salol, MNPUBLIC FACEBOOK REPORT RELAYED VIA MEDIA PARTNER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 24, 1:13 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 0.0 hours before the alert went out and 136 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, International Fa, MN at 00:00Z on 2013-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2085 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 00:00Z on 2013-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2085 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1272 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
1.2
Supercell composite
9.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

107 
WFUS53 KFGF 250002
TORFGF
MNC077-135-250045-
/O.NEW.KFGF.TO.W.0011.130825T0002Z-130825T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
702 PM CDT SAT AUG 24 2013

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL LAKE OF THE WOODS COUNTY IN NORTH CENTRAL MINNESOTA...
  NORTHEASTERN ROSEAU COUNTY IN NORTHWEST MINNESOTA...

* UNTIL 745 PM CDT

* AT 700 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR SALOL...AND MOVING NORTHEAST AT 35 MPH.

  HAZARD...TORNADO.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...SPORADIC DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.

* THIS DANGEROUS STORM WILL BE NEAR...
  WARROAD AROUND 715 PM CDT.
  SWIFT AROUND 720 PM CDT.
  ARNESEN AROUND 740 PM CDT.
  LONG POINT AROUND 745 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GRAND
FORKS.

&&

LAT...LON 4921 9478 4914 9477 4910 9474 4899 9470
      4896 9471 4868 9553 4888 9570 4901 9536
      4901 9516 4909 9517 4923 9480
TIME...MOT...LOC 0002Z 241DEG 30KT 4883 9549

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

JK
1 follow-up statement
089 
WWUS53 KFGF 250018
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
718 PM CDT SAT AUG 24 2013

MNC077-135-250045-
/O.CON.KFGF.TO.W.0011.000000T0000Z-130825T0045Z/
LAKE OF THE WOODS MN-ROSEAU MN-
718 PM CDT SAT AUG 24 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN ROSEAU AND
CENTRAL LAKE OF THE WOODS COUNTIES UNTIL 745 PM CDT...

AT 714 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 8 MILES EAST OF SALOL...AND MOVING NORTHEAST AT 35 MPH.

HAZARD...TORNADO.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...SPORADIC DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.

THIS DANGEROUS STORM WILL BE NEAR...
  WARROAD AROUND 720 PM CDT.
  ARNESEN AROUND 745 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GRAND
FORKS.

&&

LAT...LON 4921 9478 4914 9477 4910 9474 4899 9470
      4896 9471 4868 9553 4888 9570 4901 9536
      4901 9516 4909 9517 4923 9480
TIME...MOT...LOC 0017Z 237DEG 29KT 4891 9543

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

JK

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 24, 7:27 PM CDTSevere Thunderstorm WarningFGFLake of the Woods, Roseau48 min
Aug 24, 8:07 PM CDTSevere Thunderstorm WarningFGFLake of the Woods, Roseau53 min
Aug 24, 10:50 PM CDTSpecial Weather StatementFGFPennington55 min
Aug 24, 11:53 PM CDTSpecial Weather StatementFGFBeltrami67 min
Aug 25, 12:08 AM CDTSevere Thunderstorm WarningFGFBeltrami52 min
Aug 25, 3:37 AM CDTSevere Thunderstorm WarningFGFClay, Norman53 min
Aug 25, 4:26 AM CDTSevere Thunderstorm WarningFGFBecker, Clay, Clearwater, Mahnomen, Norman64 min
Aug 25, 5:27 AM CDTSevere Thunderstorm WarningFGFBecker, Clearwater, Hubbard48 min
Aug 25, 9:51 AM CDTHeat AdvisoryFGFGrant, Otter Tail, Wadena, Wilkin9 hr
Aug 25, 6:04 PM CDTSevere Thunderstorm WarningFGFHubbard56 min
Aug 25, 6:57 PM CDTSevere Thunderstorm WarningFGFBeltrami, Hubbard63 min

Nearby

Tornado Warnings in Minnesota, 2013Every tornado warning in 2013Tornadoes in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.